package cn.wjc.demo.part.three.dao;

public class Dao {

    public Dao() {
        System.out.println("Dao构造函数开始");
        update();
        System.out.println("Dao构造函数结束");
    }

    public void select() {
        System.out.println("Dao.select");
    }

    public void update() {
        System.out.println("Dao.update");
    }
}
